2143078299 has 12 divisors (see below), whose sum is σ = 3148025400. Its totient is φ = 1404502944.

The previous prime is 2143078243. The next prime is 2143078309. The reversal of 2143078299 is 9928703412.

It is not a de Polignac number, because 2143078299 - 2¹⁶ = 2143012763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143078099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2017434 + ... + 2018495.

It is an arithmetic number, because the mean of its divisors is an integer number (262335450).

Almost surely, 2^2143078299 is an apocalyptic number.

2143078299 is a deficient number, since it is larger than the sum of its proper divisors (1004947101).

2143078299 is a wasteful number, since it uses less digits than its factorization.

2143078299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035994 (or 4035991 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2143078299 is about 46293.3936863566. The cubic root of 2143078299 is about 1289.2763401084.

The spelling of 2143078299 in words is "two billion, one hundred forty-three million, seventy-eight thousand, two hundred ninety-nine".